you need to ftp your xbox and computer, put the game in the xbox drive, look in the drive folder and ftp it over. then u will have to turn it into a iso. But if you have a large hard drive just use boxplorerand copy it to the hd.

You will also need the evolution x dash to replace the stock MS Dash on your xbox before you can do any of the things listed above, and then hook your xbox up to your computer via ethernet connection and use your xbox to read your original discs.